Water-swivel.



G. W. MGALLISTER.

WATER SWIVEL.

APPLIGATION FILED JAN.18, 1912.

Patented Feb. 18, 1913.

v 5 8 4 7 A 4. W a g M? Q\\\\\\\\\\\\ 1 22 w WWW w I 0/5 0 4 I z mww In. M w n.. M' WMW. 2M w WITNESSES INVENTOR 2.42;, fim flwzwv V ATTORNE GEORGE WATSON MOALLISTER, OF SAN FRANCISCO, CALIFORNIA.

WATER-SWIVEL.

Specification of Letters Patent.

Patented Feb. 18,1913.

Original application filed March 8, 1911, Serial 1t 0. 613,064. Divided and this application filed January 18, 1912. Serial No. 671,992.

To all whom it may concern:

Be it known that 1, GEORGE W. MoALLIsran, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented a new and useful Water-Swivel, of which the following is a specification in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a water swivel for introducing and exhausting from rotary well drill rods the necessary water for the operation of drilling the hole.

This application is a division of application for patent Ser. No. 613,064, filed by me March 8, 1911.

An object of the invention is to provide a water swivel which may be applied to the drill rods when they are not in motion and which has as little friction as possible against its support, in order "that the fresh length of drill rod maybe easily and quickly screwed on the next lower section of rod.

A further object of the invention is to provide a water swivel which will be capable of handling the inflowing water as well as the outflowing water from the drill.

Further objects of the invention will be apparent as the description proceeds.

In the drawings in which the same numeral of reference is applied to the same portion throughout the several views, Figure 1 is a plan view of the water swivel, showing the inflowing and outflowing water pipes. Fig. 2 is a side elevation of the water swivel. Fig. 3 is a plan view thereof on the dotted line 33 in Fi 2, and Fig. 4 is a vertical sectional View t rough the water swivel, the bail being shown notsectioned. I

The numeral 1 represents the bail, said bail having eyes therein at 2 for supporting the water swivel ears 3 3. The bail also has an eye at 4, through which the hook, used to support the Water swivel from the frame of the drilling machine, is passed. The earsB are secured on a support 5, which has a flange at 6 and 7 and a ball race at 8 for the purpose of supporting the load to be carried on the balls 9.

Passing through the center of the support 5 is a revoluble head 10. This head has a ring 11 with a ball race 12 secured to the head b means of set screws 13. The head 10 is t readed at 14 to secure a drill rod 15 thereto; the lower portion of the head is bored out lar e enough to fit tightly over the drill rod ant? is flared outwardly at, 16 to permit the ready insertion therein .of said rod. The upper portion of thehead has a threaded boss 17 extending therefrom, through which there is a central opening 18. At each side of the central opening there is a water supply opening 19, through the head 10. On the top of the head there is a stationary ring or collar 20, which has a-pipe 21 connected thereto and which has a groove 22 extending around the same, so that the opening 19 will always be in contact with said groove 22, thus permitting the flow of the water at all times from the pipe 21 into the outside opening of the drill rod 15.

The stationary collar 20 is provided with suitable packing rings, as shown, for the purpose of preventing the escape of the water pumped therethrough at its joints with the revoluble head. Screwed on the boss 17 is a short connection 24, which rotates with the revoluble head 10 and from which extends a fixed member 25, for the escape of the water and pulverized rock from the drill rods. The member 25 has a pipe 26 connected therewith to lead said water and crushed rock to a suitableplace of discharge, and it is held in place by means of a ring 27, bolted to the top of the member 24. The member 25 is suitably packed at 28 and 29 to prevent the escape of water, save through the pipe 26.

In operation the bail of the swivel is su ported from a cable. A fresh length of drill rod is screwed thereinto whereupon the swivel is placed in position over the set of rotating drill rods in the hole and suitable means are employed to then connect the drill rod in the-water swivel and the drill rods in motion, after which water may be pumped throu h the ipe 21 into the bottom of the drill ho e, an while under pressure it is forced out through the pipe 26 to a suitable place of discharge.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. In a water swivel for drill rods, a threaded swivel member adapted to be secured to a set of drill rods and having a flared opening leading to said threads, a ring for the support of said member, a fixed water inlet ring having an opening therethrough leading to openings extending eccentrlcally tirough said threaded member, a Water inlet pipe connected With said ring,

a fixed water ,outlet pipe cent-rally placed with respect to said threaded member, means to secure said Water outlet pipe to said threaded member and packing to prevent the egress from said devices of the water used, save through the pipes connected therewith, substantially as described.

2. In a Water swivel, a bail, a ring supported thereby; a threaded member swivelly supported on said ring and having openings therethrough and a flared opening leading to said threads; a second ring below the first ring and secured to said threaded member to preventthe removal of'the threaded member fromthe ring, a fixed Water inlet ring resting onthe top of the threaded memher and having openings therethrough leading to eccentric openings through the threaded member, means to secure said plate tightly against the top of said threaded member, a fixed Water inlet pipe connected with the inlet ring, a fixed Wa ter outlet pipe,

1912, in the presence of the two subscribed Witnesses.

GEORGE WATSON MCALLISTER. C. P. GRIFFIN, L. H. ANDERSON. 

